C80 - Malignant neoplasm without specification of site
Excludes 1:
-malignant carcinoid tumor of unspecified site (C7A.00)
-malignant neoplasm of specified multiple sites- code to each site
C80.0 - Disseminated malignant neoplasm, unspecified
C80.1 - Malignant (primary) neoplasm, unspecified
C80.2 - Malignant neoplasm associated with transplanted organ